it's for a 84 camaro street/strip car, mostly street, any idea about what size gvw would be good, or should i just go for one of the biggest they have like 24,000 gvw? Is overcooling a problem or is it fine? Thanks, and sorry for the noob questions, never dealt with automatics before. Thanks.

Just be sure to use a bypass thermostat... They are only about $ 20 and prevent the trans from getting too cool when operating and make it warm up quicker when it is cold.. you can use the radiator cooler if you want to. I like them for warm ups.

What's the big deal here.. Hasn't anybody ever heard of one before????
Has anybody ever seen a rusty trans dipstick from too cold of oil???